282 North American Cijperacea. 



flat, widely spreading, loosely imbricated, yellow-ferruginous, shining. 

 Scales oblong. Vahl, enum. 2. p. 332 ; Pursh, fl. 1. p. 52 ? 



In swamps of Virginia and North Carolina, ValiU Pursli. — As the 

 characters of the fruit are not given by Vahl, it is imiwssible to identify 

 this species, or even to point out the section of the genus to which it 

 belongs. I am inclined, however, to believe, that it is one of the Pycreus 

 group, and probably C. diandrus. Pursh's imperfect specimen in Lam- 

 bert's herbarium seems to be C. Nuitallii. Nees, in the catalogue of 

 Cyperi examined by him {Linncea, 1. c.) places CJilicinus in the section 

 Aristati, but his plant must be distinct from the species above described. 



4. C. ODORATUS, Linn. ? ; Pursli, fl. 1. p. 52, (excl. syn.) 



"On the banks of rivers, Pennsylvania to Florida, rare," Pursli. — 

 Linnaeus, and Willdenow, under C odoratus, refer to Gron. fl. Virg. p. 

 131, and this is probably the reason why Pursh described this species 

 in his work. It does not appear, however, that the true C. odoratus 

 has been found in North America. 



5. C. DisTANS, Linn. ? ; Pursh, fl. 1. p. 53. (excl. syn.) 



"In sandy wet woods; Carolina and Georgia," Pursli. — Pursh is 

 the only writer on North American Botany who has introduced this 

 species into our Flora. Can his plant be C. stenolepis of this Mono- 

 graph ? 



6. C. Fuscus, L. — Sprengel, in his Systana Vegetabilium, (1. p. 223.) 

 states that this species inhabits North America, but I consider it a very 

 doubtful native. 



7. C. BRizjEUs, Richard? ; Pursh, fl. 1. p. 51, 



In swamps of Carolina, Pursh, 



The C. brizceus of Richard and Vahl, a native of Cayenne and Porto- 

 rico, seems to be a very distinct plant from Pursh's, which, I am inclined 

 to think, is merely a variety of C. diandriis. 



Since the preceding matter was written and mostly printed, I have 

 received from my friend G. A. W. Arnott, Esq. an extract from a MS. 

 of N. ab Esenbeck on some N. American Cyperacete, particularly those 

 collected by Drummond in his last expeditions. Among the species 

 found by Drummond near St. Louis, Nees notices C. Elliottianus, (my 

 C. diandrus?), Cfllicinus (probably not Vahl's plant), C. repens, and C. 

 Kyllingceoides, which last, as Mr. Arnott remarks, must be C.filiculmis, 

 and not the East Indian C. Killing^eoides. 



